diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c
index edf91f4..428ed27 100644
--- a/arch/mips/au1000/common/dbdma.c
+++ b/arch/mips/au1000/common/dbdma.c
@@ -179,7 +179,7 @@
 	{ 0, 0, 0, 0, 0, 0, 0 },
 };
 
-#define DBDEV_TAB_SIZE (sizeof(dbdev_tab) / sizeof(dbdev_tab_t))
+#define DBDEV_TAB_SIZE	ARRAY_SIZE(dbdev_tab)
 
 static chan_tab_t *chan_tab_ptr[NUM_DBDMA_CHANS];
 
diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c
index d2c2e00..f6704ab 100644
--- a/arch/mips/kernel/kspd.c
+++ b/arch/mips/kernel/kspd.c
@@ -161,8 +161,7 @@
 	int i;
 	unsigned int ret = 0;
 
-	for (i = 0; i < (sizeof(open_flags_table) / sizeof(struct apsp_table));
-	     i++) {
+	for (i = 0; i < ARRAY_SIZE(open_flags_table); i++) {
 		if( (flags & open_flags_table[i].sp) ) {
 			ret |= open_flags_table[i].ap;
 		}
diff --git a/arch/mips/philips/pnx8550/common/setup.c b/arch/mips/philips/pnx8550/common/setup.c
index 2ce298f..92d764c 100644
--- a/arch/mips/philips/pnx8550/common/setup.c
+++ b/arch/mips/philips/pnx8550/common/setup.c
@@ -74,7 +74,7 @@
 	},
 };
 
-#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource))
+#define STANDARD_IO_RESOURCES ARRAY_SIZE(standard_io_resources)
 
 extern struct resource pci_io_resource;
 extern struct resource pci_mem_resource;
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/setup.c b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
index 58e4768..f14bea8 100644
--- a/arch/mips/vr41xx/nec-cmbvr4133/setup.c
+++ b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
@@ -50,7 +50,7 @@
 	}
 };
 
-#define number_partitions (sizeof(cmbvr4133_mtd_parts)/sizeof(struct mtd_partition))
+#define number_partitions ARRAY_SIZE(cmbvr4133_mtd_parts)
 #endif
 
 extern void i8259_init(void);